美国ASCO电磁阀 L23BB452OG00040：

^[1]ASCO电磁阀选型参数首先应该依次遵循安全性，可靠性，适用性，经济性四大原 则，其次是根据六个方面的现场工况（即管道参数、流体参数、压力参数、电气参数、动作方式、特殊要求进行选择）。
　　选型依据：
　　1、根据管道参数选择电磁阀的：通径规格（即DN）、接口方式
　　1）按照现场管道内径尺寸或流量要求来确定通径（DN）尺寸；
　　2）接口方式，一般>DN50要选择法兰接口，≤DN50则可根据用户需要自由选择。
　　2、根据流体参数选择电磁阀的：材质、温度组
　　1）腐蚀性流体：宜选用耐腐蚀电磁阀和全不锈钢；食用超净流体：宜选用食品级不锈钢材质电磁阀；
　　2）高温流体：要选择采用耐高温的电工材料和密封材料制造的电磁阀，而且要选择活塞式结构类型的；
　　3）流体状态：大至有气态，液态或混合状态，特别是口径大于DN25时一定要区分开来；
　　4）流体粘度：通常在50cSt以下可任意选择，若超过此值，则要选用高粘度电磁阀。
　　3、根据压力参数选择电磁阀的：原理和结构品种
　　1）公称压力：这个参数与其它通用阀门的含义是一样的，是根据管道公称压力来定；
　　2）工作压力：如果工作压力低则必须选用直动或分步直动式原理；zui低工作压差在0.04Mpa以上时直动式、分步直动式、先导式均可选用。
　　4、电气选择：电压规格应尽量优先选用AC220V、DC24较为方便。
　　5、根据持续工作时间长短来选择：常闭、常开、或可持续通电
　　1）当电磁阀需要长时间开启，并且持续的时间多于关闭的时间应选 用常开型；
　　2）要是开启的时间短或开和关的时间不多时，则选常闭型；
　　3）但是有些用于安全保护的工况，如炉、窑火焰监测，则不能选常开的，应选可长期通电型。分为直动式，先导式，手动复位阀。
　　6、根据环境要求选择辅助功能：防爆、止回、手动、防水雾、水淋、潜水。A51BA452CG00060
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230-1140
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asco-numatics电磁阀，纽曼蒂克电磁阀，ASCO_Numatics电磁阀，NUMATICS电磁阀
230-1140
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230-1140
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asco-numatics电磁阀，纽曼蒂克电磁阀，ASCO_Numatics电磁阀，NUMATICS电磁阀
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asco-numatics电磁阀，纽曼蒂克电磁阀，ASCO_Numatics电磁阀，NUMATICS电磁阀
230-1140
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asco-numatics电磁阀，纽曼蒂克电磁阀，ASCO_Numatics电磁阀，NUMATICS电磁阀